Let us consider a data cube of a bookstore with three dimensions: Book, Time, Location and one measure sum_sales. The dimension Book contains information about title, category and authors. The hierarchy of the dimension Location contains city and country. However, the dimension Time records data about day, week, month quarter and year.
1. Give a full snowflake schema for the bookstore cube (ER diagram under PowerDesigner or other software).
2. Give query samples for the OLAP operations: drill-down, roll-up, slice.
a. In SQL format.
b. Under SQL Server Analysis Manager.
3. Under Analysis Manager of SQL Server, give a table that allows you to display information of amount sales of books by considering all levels of dimension hierarchies.
4. Give an example of OLAP operations (drill-down, roll-up, slice) by using MDX query language.
• Provide report
• SQL Server files
Hi, I am expert in DB Modeling, ER Diagram, Star schema, snowflake schema, DWH concepts. I can do this task perfectly with complete accuracy as per your requirements.
I have more than 30 years’ experience in the IT industry within Government Departments, Science and Research, Mining, Manufacturing industries, Health care as well as Financial sector. My aim is excelling at everything I am doing and by principle strive to be the best in my professional career, as well as in the company I am employed. The knowledge and experience I have gained throughout my employment at both private and public enterprises have added to my extensive IT skills base. I am proud of my achievements in many of the information technology products and solutions and was 4 times the top performer/team in the last 6 years. As an ICT Specialist, I always strive to be on top of the fast technology changes by investigating and researching new technologies and solutions across a variety of systems, networks and infrastructures.
I'm an experienced freelancer database and .net design, development and optimization with 10 years of experience . I have used Erwin tool for data modelling and i am well-versed with Normalization's for doing DB design.
I am currently in Texas, US
Here is few technologies I have mastered since last 10 years and can deliver the best solutions if you get me hired.
1) Sql Server 2005/2008/2012
2) C#, Asp.net, Angular
2) MYSQL, MS Access
3) Oracle (PL/SQL)
4) SSIS, SSRS , SSAS and Power BI
5) Data analytics using R-Programming and SAS